I downloaded the “Jieli BR21 driver full” package because my generic Bluetooth earphones (BR21 chip) kept disconnecting on Windows 10. After installing the driver and rebooting, the connection became stable and audio latency improved slightly.
[BR21] Jieli SDK vX.Y Build: 2024-11-15 [BOOT] Core0: M0, Core1: M4 [INIT] HAL OK [INIT] BT stack vX.Y [INIT] DSP ready, sample rate 48kHz [APP ] Ready jieli br21 driver full
Most JieLi BR21 devices are designed to be "plug-and-play," meaning they should use standard Windows or Linux USB Audio Class (UAC) drivers automatically. However, legacy systems or specific update tools may require manual intervention. I downloaded the “Jieli BR21 driver full” package